FYI Begin forwarded message: > Date: June 2, 2011 7:31:40 PM GMT-03:00 > To: n...@freebsd.org > Cc: curr...@freebsd.org > Subject: Introducing netmap: line-rate packet send/receive at 10Gbit/s > > Hi, > we have recently worked on a project, called netmap, which lets > FreeBSD send/receive packets at line rate even at 10 Gbit/s with > very low CPU overhead: one core at 1.33 GHz does 14.88 Mpps with a > modified ixgbe driver, which gives plenty of CPU cycles to handle > multiple interface and/or do useful work (packet forwarding, analysis, etc.) > > You can find full documentation and source code and even a picobsd image at > > http://info.iet.unipi.it/~luigi/netmap/ > > The system uses memory mapped packet buffers to reduce the cost of > data movements, but this would not be enough to make it useful or > novel. Netmap uses many other small but important tricks to make > the system fast, safe and easy to use, and support transmission, > reception, and communication with the host stack. > > You can see full details in documentation at the above link. > > Feedback welcome. > > cheers > luigi > -----------------------------------------+------------------------------- > Prof. Luigi RIZZO, ri...@iet.unipi.it . Dip. di Ing. dell'Informazione > http://www.iet.unipi.it/~luigi/ . Universita` di Pisa > TEL +39-050-2211611 . via Diotisalvi 2 > Mobile +39-338-6809875 . 56122 PISA (Italy) > -----------------------------------------+-------------------------------
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